diff --git a/static/reveal.js/css/theme/black.css b/static/reveal.js/css/theme/black.css
index 83f6eee..a92ae22 100644
--- a/static/reveal.js/css/theme/black.css
+++ b/static/reveal.js/css/theme/black.css
@@ -3,262 +3,269 @@
  *
  * By Hakim El Hattab, http://hakim.se
  */
-@import url(../../lib/font/source-sans-pro/source-sans-pro.css);
-section.has-light-background, section.has-light-background h1, section.has-light-background h2, section.has-light-background h3, section.has-light-background h4, section.has-light-background h5, section.has-light-background h6 {
-  color: #222; }
-
-/*********************************************
- * GLOBAL STYLES
- *********************************************/
-body {
-  background: #222;
-  background-color: #222; }
-
-.reveal {
-  font-family: "Source Sans Pro", Helvetica, sans-serif;
-  font-size: 42px;
-  font-weight: normal;
-  color: #fff; }
-
-::selection {
-  color: #fff;
-  background: #bee4fd;
-  text-shadow: none; }
-
-::-moz-selection {
-  color: #fff;
-  background: #bee4fd;
-  text-shadow: none; }
-
-.reveal .slides > section,
-.reveal .slides > section > section {
-  line-height: 1.3;
-  font-weight: inherit; }
-
-/*********************************************
- * HEADERS
- *********************************************/
-.reveal h1,
-.reveal h2,
-.reveal h3,
-.reveal h4,
-.reveal h5,
-.reveal h6 {
-  margin: 0 0 20px 0;
-  color: #fff;
-  font-family: "Source Sans Pro", Helvetica, sans-serif;
-  font-weight: 600;
-  line-height: 1.2;
-  letter-spacing: normal;
-  text-transform: uppercase;
-  text-shadow: none;
-  word-wrap: break-word; }
-
-.reveal h1 {
-  font-size: 2.5em; }
-
-.reveal h2 {
-  font-size: 1.6em; }
-
-.reveal h3 {
-  font-size: 1.3em; }
-
-.reveal h4 {
-  font-size: 1em; }
-
-.reveal h1 {
-  text-shadow: none; }
-
-/*********************************************
- * OTHER
- *********************************************/
-.reveal p {
-  margin: 20px 0;
-  line-height: 1.3; }
-
-/* Ensure certain elements are never larger than the slide itself */
-.reveal img,
-.reveal video,
-.reveal iframe {
-  max-width: 95%;
-  max-height: 95%; }
-
-.reveal strong,
-.reveal b {
-  font-weight: bold; }
-
-.reveal em {
-  font-style: italic; }
-
-.reveal ol,
-.reveal dl,
-.reveal ul {
-  display: inline-block;
-  text-align: left;
-  margin: 0 0 0 1em; }
-
-.reveal ol {
-  list-style-type: decimal; }
-
-.reveal ul {
-  list-style-type: disc; }
-
-.reveal ul ul {
-  list-style-type: square; }
-
-.reveal ul ul ul {
-  list-style-type: circle; }
-
-.reveal ul ul,
-.reveal ul ol,
-.reveal ol ol,
-.reveal ol ul {
-  display: block;
-  margin-left: 40px; }
-
-.reveal dt {
-  font-weight: bold; }
-
-.reveal dd {
-  margin-left: 40px; }
-
-.reveal blockquote {
-  display: block;
-  position: relative;
-  width: 70%;
-  margin: 20px auto;
-  padding: 5px;
-  font-style: italic;
-  background: rgba(255, 255, 255, 0.05);
-  box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
-
-.reveal blockquote p:first-child,
-.reveal blockquote p:last-child {
-  display: inline-block; }
-
-.reveal q {
-  font-style: italic; }
-
-.reveal pre {
-  display: block;
-  position: relative;
-  width: 90%;
-  margin: 20px auto;
-  text-align: left;
-  font-size: 0.55em;
-  font-family: monospace;
-  line-height: 1.2em;
-  word-wrap: break-word;
-  box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
-
-.reveal code {
-  font-family: monospace;
-  text-transform: none; }
-
-.reveal pre code {
-  display: block;
-  padding: 5px;
-  overflow: auto;
-  max-height: 400px;
-  word-wrap: normal; }
-
-.reveal table {
-  margin: auto;
-  border-collapse: collapse;
-  border-spacing: 0; }
-
-.reveal table th {
-  font-weight: bold; }
-
-.reveal table th,
-.reveal table td {
-  text-align: left;
-  padding: 0.2em 0.5em 0.2em 0.5em;
-  border-bottom: 1px solid; }
-
-.reveal table th[align="center"],
-.reveal table td[align="center"] {
-  text-align: center; }
-
-.reveal table th[align="right"],
-.reveal table td[align="right"] {
-  text-align: right; }
-
-.reveal table tbody tr:last-child th,
-.reveal table tbody tr:last-child td {
-  border-bottom: none; }
-
-.reveal sup {
-  vertical-align: super; }
-
-.reveal sub {
-  vertical-align: sub; }
-
-.reveal small {
-  display: inline-block;
-  font-size: 0.6em;
-  line-height: 1.2em;
-  vertical-align: top; }
-
-.reveal small * {
-  vertical-align: top; }
-
-/*********************************************
- * LINKS
- *********************************************/
-.reveal a {
-  color: #42affa;
-  text-decoration: none;
-  -webkit-transition: color .15s ease;
-  -moz-transition: color .15s ease;
-  transition: color .15s ease; }
-
-.reveal a:hover {
-  color: #8dcffc;
-  text-shadow: none;
-  border: none; }
-
-.reveal .roll span:after {
-  color: #fff;
-  background: #068de9; }
-
-/*********************************************
- * IMAGES
- *********************************************/
-.reveal section img {
-  margin: 15px 0px;
-  background: rgba(255, 255, 255, 0.12);
-  border: 4px solid #fff;
-  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
-
-.reveal section img.plain {
-  border: 0;
-  box-shadow: none; }
-
-.reveal a img {
-  -webkit-transition: all .15s linear;
-  -moz-transition: all .15s linear;
-  transition: all .15s linear; }
-
-.reveal a:hover img {
-  background: rgba(255, 255, 255, 0.2);
-  border-color: #42affa;
-  box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
-
-/*********************************************
- * NAVIGATION CONTROLS
- *********************************************/
-.reveal .controls {
-  color: #42affa; }
-
-/*********************************************
- * PROGRESS BAR
- *********************************************/
-.reveal .progress {
-  background: rgba(0, 0, 0, 0.2);
-  color: #42affa; }
-
-.reveal .progress span {
-  -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
-  -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
-  transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+ @import url(../../lib/font/source-sans-pro/source-sans-pro.css);
+ section.has-light-background, section.has-light-background h1, section.has-light-background h2, section.has-light-background h3, section.has-light-background h4, section.has-light-background h5, section.has-light-background h6 {
+   color: #222; }
+
+ /*********************************************
+  * GLOBAL STYLES
+  *********************************************/
+ body {
+   background: #222;
+   background-color: #222; }
+
+ body:after {
+   content: url(sva.png);
+   position: fixed;
+   bottom: 3.5em;
+   left: 3.5em;
+   box-shadow: 5px 5px 10px #0; }
+
+ .reveal {
+   font-family: "Source Sans Pro", Helvetica, sans-serif;
+   font-size: 42px;
+   font-weight: normal;
+   color: #fff; }
+
+ ::selection {
+   color: #fff;
+   background: #bee4fd;
+   text-shadow: none; }
+
+ ::-moz-selection {
+   color: #fff;
+   background: #bee4fd;
+   text-shadow: none; }
+
+ .reveal .slides > section,
+ .reveal .slides > section > section {
+   line-height: 1.3;
+   font-weight: inherit; }
+
+ /*********************************************
+  * HEADERS
+  *********************************************/
+ .reveal h1,
+ .reveal h2,
+ .reveal h3,
+ .reveal h4,
+ .reveal h5,
+ .reveal h6 {
+   margin: 0 0 20px 0;
+   color: #fff;
+   font-family: "Source Sans Pro", Helvetica, sans-serif;
+   font-weight: 600;
+   line-height: 1.2;
+   letter-spacing: normal;
+   text-transform: uppercase;
+   text-shadow: none;
+   word-wrap: break-word; }
+
+ .reveal h1 {
+   font-size: 2.5em; }
+
+ .reveal h2 {
+   font-size: 1.6em; }
+
+ .reveal h3 {
+   font-size: 1.3em; }
+
+ .reveal h4 {
+   font-size: 1em; }
+
+ .reveal h1 {
+   text-shadow: none; }
+
+ /*********************************************
+  * OTHER
+  *********************************************/
+ .reveal p {
+   margin: 20px 0;
+   line-height: 1.3; }
+
+ /* Ensure certain elements are never larger than the slide itself */
+ .reveal img,
+ .reveal video,
+ .reveal iframe {
+   max-width: 95%;
+   max-height: 95%; }
+
+ .reveal strong,
+ .reveal b {
+   font-weight: bold; }
+
+ .reveal em {
+   font-style: italic; }
+
+ .reveal ol,
+ .reveal dl,
+ .reveal ul {
+   display: inline-block;
+   text-align: left;
+   margin: 0 0 0 1em; }
+
+ .reveal ol {
+   list-style-type: decimal; }
+
+ .reveal ul {
+   list-style-type: disc; }
+
+ .reveal ul ul {
+   list-style-type: square; }
+
+ .reveal ul ul ul {
+   list-style-type: circle; }
+
+ .reveal ul ul,
+ .reveal ul ol,
+ .reveal ol ol,
+ .reveal ol ul {
+   display: block;
+   margin-left: 40px; }
+
+ .reveal dt {
+   font-weight: bold; }
+
+ .reveal dd {
+   margin-left: 40px; }
+
+ .reveal blockquote {
+   display: block;
+   position: relative;
+   width: 70%;
+   margin: 20px auto;
+   padding: 5px;
+   font-style: italic;
+   background: rgba(255, 255, 255, 0.05);
+   box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
+
+ .reveal blockquote p:first-child,
+ .reveal blockquote p:last-child {
+   display: inline-block; }
+
+ .reveal q {
+   font-style: italic; }
+
+ .reveal pre {
+   display: block;
+   position: relative;
+   width: 90%;
+   margin: 20px auto;
+   text-align: left;
+   font-size: 0.55em;
+   font-family: monospace;
+   line-height: 1.2em;
+   word-wrap: break-word;
+   box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
+
+ .reveal code {
+   font-family: monospace;
+   text-transform: none; }
+
+ .reveal pre code {
+   display: block;
+   padding: 5px;
+   overflow: auto;
+   max-height: 400px;
+   word-wrap: normal; }
+
+ .reveal table {
+   margin: auto;
+   border-collapse: collapse;
+   border-spacing: 0; }
+
+ .reveal table th {
+   font-weight: bold; }
+
+ .reveal table th,
+ .reveal table td {
+   text-align: left;
+   padding: 0.2em 0.5em 0.2em 0.5em;
+   border-bottom: 1px solid; }
+
+ .reveal table th[align="center"],
+ .reveal table td[align="center"] {
+   text-align: center; }
+
+ .reveal table th[align="right"],
+ .reveal table td[align="right"] {
+   text-align: right; }
+
+ .reveal table tbody tr:last-child th,
+ .reveal table tbody tr:last-child td {
+   border-bottom: none; }
+
+ .reveal sup {
+   vertical-align: super; }
+
+ .reveal sub {
+   vertical-align: sub; }
+
+ .reveal small {
+   display: inline-block;
+   font-size: 0.6em;
+   line-height: 1.2em;
+   vertical-align: top; }
+
+ .reveal small * {
+   vertical-align: top; }
+
+ /*********************************************
+  * LINKS
+  *********************************************/
+ .reveal a {
+   color: #42affa;
+   text-decoration: none;
+   -webkit-transition: color .15s ease;
+   -moz-transition: color .15s ease;
+   transition: color .15s ease; }
+
+ .reveal a:hover {
+   color: #8dcffc;
+   text-shadow: none;
+   border: none; }
+
+ .reveal .roll span:after {
+   color: #fff;
+   background: #068de9; }
+
+ /*********************************************
+  * IMAGES
+  *********************************************/
+ .reveal section img {
+   margin: 15px 0px;
+   background: rgba(255, 255, 255, 0.12);
+   border: 4px solid #fff;
+   box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
+
+ .reveal section img.plain {
+   border: 0;
+   box-shadow: none; }
+
+ .reveal a img {
+   -webkit-transition: all .15s linear;
+   -moz-transition: all .15s linear;
+   transition: all .15s linear; }
+
+ .reveal a:hover img {
+   background: rgba(255, 255, 255, 0.2);
+   border-color: #42affa;
+   box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
+
+ /*********************************************
+  * NAVIGATION CONTROLS
+  *********************************************/
+ .reveal .controls {
+   color: #42affa; }
+
+ /*********************************************
+  * PROGRESS BAR
+  *********************************************/
+ .reveal .progress {
+   background: rgba(0, 0, 0, 0.2);
+   color: #42affa; }
+
+ .reveal .progress span {
+   -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+   -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
+   transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
\ No newline at end of file